Automatic unloading system for liquid carbon dioxide

Abstract

The utility model discloses an automatic unloading system for liquid carbon dioxide, which is simple and novel in operation method and convenient to operate. According to the automatic unloading system, a gas-phase hose is connected with a gas-phase pipe section of a ship filling station and a gas return pipe of a wharf / transport ship filling station; a liquid-phase hose is connected with a liquid-phase pipe section of a ship filling station and a CO2 injection pipe of a wharf / transport ship filling station, and unloading is completed by generating power through the pressure difference between CO2 liquid in a ship CO2 storage tank and CO2 liquid in the CO2 storage tank. Meanwhile, an instrument signal cable and a ship-shore communication system collect and input ship unloading information and wharf injection information into a ship central control system, and after the ship unloading information and the wharf injection information are processed by the central control system, instructions are sent to corresponding control valves, and automatic control is achieved. Compared with the prior art, installation of a CO2 liquid pump or an immersed pump, a CO2 gas generator and corollary equipment and pipelines thereof is omitted, and cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of offshore platform and ship, concretely relates to an automatic unloading system of liquid carbon dioxide. BACKGROUND

[0002] With the increasing call for zero carbon dioxide gas emission of ships, various policies and regulations are implemented, and there is still a long way to go for new fuels to replace carbon (C) elements. Therefore, the traditional clean fuel (LNG, etc.) cooperates with the ship carbon capture and storage technology to achieve the purpose of ship carbon emission reduction, which is the main choice of existing shipping ships. The captured CO2 is stored in the ship liquid CO2 storage tank, and how to timely and effectively unload the liquid in the ship liquid CO2 storage tank to the wharf is one of the current research topics. Cooperate with the development of ship carbon capture and storage industry chain.

[0003] In the prior art, the power is generated by relying on the submersible pump in the ship CO2 storage tank or the CO2 liquid pump installed on the pipeline to barge the liquid CO2 to the wharf CO2 storage tank to complete the unloading. This kind of technology has the following disadvantages: 1. During the barge of liquid CO2, the ship CO2 storage tank needs to be supplemented with pure CO2 gas in time to maintain the pressure of the ship CO2 storage tank. During unloading, there is no timely or insufficient CO2 gas supplement, which causes the ship CO2 storage tank to produce negative pressure and increases the risk of crystallization of the ship CO2 storage tank due to the decrease of pressure. 2. A separate set of CO2 gas generator needs to be provided on the ship to supplement the pure CO2 gas to the ship CO2 storage tank in time, which occupies the space of the ship and reduces the ability of the ship to carry goods, and increases the energy consumption. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at overcoming at least one defect of the above-mentioned prior art, and provides an automatic unloading system of liquid carbon dioxide, which uses the pressure difference generated by the gravity of CO2 liquid as power to complete unloading without additional power supply.

[0005] The utility model provides a kind of automatic unloading system of liquid carbon dioxide, including CO2 injection pipeline, ship CO2 storage tank, unload CO2 storage tank, liquid phase pipeline, gas phase pipeline and gas phase branch pipe;The one end of CO2 injection pipeline is connected with filling station, the other end is connected with the top of ship CO2 storage tank;The one end of liquid phase pipeline is connected with the bottom of ship CO2 storage tank, the other end is connected with the top of unload CO2 storage tank;The one end of gas phase pipeline is connected with the top of ship CO2 storage tank, the other end is connected with the top of unload CO2 storage tank;The height difference of filling station and ship CO2 storage tank is H1, the height difference of ship CO2 storage tank and unload CO2 storage tank is H2;Wherein H1=0;H2>0;Liquid CO2 is transmitted to ship CO2 storage tank by CO2 injection pipeline, then is transmitted to unload CO2 storage tank by liquid phase pipeline;Gaseous CO2 in unload CO2 storage tank is transmitted to ship CO2 storage tank by gas phase pipeline, and gaseous CO2 in ship CO2 storage tank is transmitted back to filling station by gas phase branch pipe.The liquid phase pipeline of the utility model is mainly used for transmission and unloading liquid CO2, gas phase pipeline is used to realize the pressure balance between ship CO2 storage tank and unload CO2 storage tank on one hand, and also can realize the supplement of CO2 in filling station on the other hand.CO2 liquid and gas are introduced to ship filling station, and there is a shore connection interface in ship filling station.CO2 storage tank is connected with wharf / transport ship filling station through the recovery section of CO2 injection pipeline and gas phase pipeline, and there is a ship connection interface higher than the top of CO2 storage tank in wharf / transport ship filling station.The one end of gas phase pipeline and liquid phase pipeline is connected with the corresponding pipeline of ship filling station, and the other end is connected with the corresponding pipeline of wharf / transport ship filling station, so that ship CO2 storage tank is connected with CO2 storage tank, under the action of pressure difference, liquid CO2 in ship CO2 storage tank reaches liquid phase hose through liquid phase pipeline, and is sent into unload CO2 storage tank through CO2 injection pipeline.The part of ship CO2 storage tank lower than filling station reaches liquid phase hose through liquid phase pipeline under the action of pressure difference (also called siphon) between ship CO2 storage tank and CO2 storage tank, and is sent into unload CO2 storage tank through CO2 injection pipeline.

[0006] Ship CO2 storage tank is connected with first control valve, and unload pipe section of liquid phase pipeline is connected behind control valve, unload pipe section is connected with liquid phase pipe section, and liquid phase pipe section introduces CO2 liquid to left and right two sides of ship filling station.

[0007] Further, the automatic unloading system further includes a reliquefaction device arranged between the gas phase branch pipe and the filling station, gaseous CO2 is transmitted to the reliquefaction device through the gas phase branch pipe, and then transmitted to the ship CO2 storage tank through the filling station.

[0008] Further, the liquid phase pipeline is sequentially provided with a first control valve, a second control valve and a third control valve from the ship CO2 storage tank to the unloading CO2 storage tank; the first control valve and the second control valve are used for controlling the speed and flow of liquid CO2 flowing out of the shore connection interface of the ship filling station; and the third control valve is used for controlling the speed and flow of liquid CO2 injected into the unloading CO2 storage tank from the filling station.

[0009] Further, the gas phase pipeline is sequentially provided with a first gas transmission branch pipe, a fourth control valve, a fifth control valve and a second gas transmission branch pipe from the unloading CO2 storage tank to the unloading CO2 storage tank; a first safety valve is arranged at the top of the first gas transmission branch pipe; and a second safety valve is arranged at the top of the second gas transmission branch pipe; the ship CO2 storage tank is connected with a second gas transmission pipe, the second safety valve is arranged at the top of the second gas transmission pipe, and the second gas transmission pipe introduces CO2 gas to the left and right two side filling stations of the ship through the gas phase pipeline.

[0010] Further, the automatic unloading system further includes a pressure maintaining system, the pressure maintaining system is connected with the gas phase pipeline between the first gas transmission branch pipe and the unloading CO2 storage tank, and is used for maintaining the pressure balance of the automatic unloading system.

[0011] Further, the pressure maintaining system includes a connecting gas pipe, a sixth control valve and a pressure maintaining tank, one end of the connecting gas pipe is connected with the gas phase pipeline, the other end of the connecting gas pipe is connected with the pressure maintaining tank, and the sixth control valve is arranged on the connecting gas pipe.

[0012] The pressure maintaining tank is provided with a pressure gauge and an automatic control valve, the pressure gauge displays the pressure of the pressure maintaining tank in real time, and the automatic control valve is connected with the first gas transmission pipe of the unloading CO2 storage tank through the connecting gas pipe, so that when the gas phase pipeline suddenly loses pressure, pure CO2 gas can be automatically supplemented to maintain the pressure balance of the entire unloading process.

[0013] Further, a plurality of pressure gauges for testing pipeline pressure and thermometers for measuring temperature are arranged on the liquid phase pipeline and the gas phase pipeline.

[0014] Further, the automatic unloading system also includes a ship-shore communication system, the ship-shore communication system is connected with the wharf or transport ship communication system, is used for collecting the liquid level, pressure and temperature information of ship CO2 storage tank, unloading CO2 storage tank, simultaneously collecting the thermometer, pressure gauge data, and the information is transmitted into the central control system of ship.

[0015] Further, the automatic unloading system also includes an instrument signal cable, the instrument signal cable and ship-shore communication system gather and input unloading information and CO2 injection information into the central control system of ship, after being handled by the central control system, instructions are sent to corresponding control valve, realize automatic control.

[0016] The instrument signal cable and ship-shore communication system gather and input ship unloading information and wharf injection information into the central control system of ship, after being handled by the central control system, instructions are sent to corresponding control valve, realize automatic control.The pressure tank is provided with a pressure gauge and is connected with the first gas pipe of unloading CO2 storage tank through pipeline, can automatically supplement pure CO2 gas, maintains pressure balance during the whole unloading procedure.

[0017] The instrument signal cable collects the liquid level, pressure and temperature information of ship CO2 storage tank, simultaneously collects the pressure and temperature information of ship filling station liquid phase pipeline and gas phase pipeline, and real-time detects ship CO2 storage tank, liquid phase pipeline and gas phase pipeline.All collected information is transported to the central control system of ship, after being handled by the central control system of ship, instructions are sent to control the opening and closing of corresponding control valve, realize automatic control.All information is displayed at ship filling station.

[0018] The ship-shore communication system is connected with the wharf / transport ship communication system, collects wharf / transport ship information and transmits into the central control system of ship, real-time monitors wharf / transport ship pipeline and CO2 storage tank.Ensure ship-shore integrated control, ensure that the whole filling system realizes automatic control.

[0019] The control console sends a start unloading instruction, and real-time liquid level, pressure and temperature detection is performed on the ship CO2 storage tank and the unloading CO2 storage tank, and pressure and temperature detection is performed on the liquid phase pipeline, the gas phase pipeline, the CO2 injection pipe and the gas phase pipeline return pipe section. When the detection meets the unloading condition, the system automatically opens all control valves to start unloading until unloading is completed. When the detection does not meet the unloading condition, an audible and light alarm is triggered. During the unloading process, when any one of the liquid level, pressure and temperature information is detected to be abnormal, the system automatically closes the first control valve behind the ship CO2 storage tank and triggers an audible and light alarm. The alarm cause is manually found and the abnormality is handled. When the abnormality is normally handled, the system is reset, the unloading program is restarted to continue unloading until unloading is completed. When the abnormality is not handled, the system automatically cuts off all control valves to stop unloading. The first control valve, the second control valve and the third control valve in the utility model are speed regulating valves or control valves with the function of speed regulating valves. The fourth control valve, the fifth control valve and the sixth control valve are check valves or control valves with the function of check valves.

[0020] Further, the top of the ship CO2 storage tank and the unloading CO2 storage tank is respectively provided with a plurality of spray heads, and the two ends of the liquid phase pipeline are respectively connected with the spray heads.

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] The automatic unloading system of the utility model connects the gas phase pipe section of the ship filling station and the gas return pipe of the wharf / transport ship filling station by a gas phase hose; a liquid phase hose connects the liquid phase pipe section of the ship filling station and the CO2 injection pipe of the wharf / transport ship filling station, and the power for completing unloading is generated by the pressure difference between the CO2 liquid of the ship CO2 storage tank and the CO2 liquid of the CO2 storage tank. At the same time, the instrument signal cable and the ship-shore communication system collect and input the ship unloading information and the wharf injection information into the ship central control system, and after being processed by the central control system, the corresponding control valve is sent an instruction to realize automatic control. Compared with the original technology, the installation of the CO2 liquid pump or the submersible pump, the CO2 gas generator and the matching equipment and pipeline is saved, and the cost is saved.

[0023] The utility model designs a gas return pipeline, fully utilizes the tank vent as CO2 gas backflow supplement, makes the liquid unloading and CO2 gas supplement into a closed cycle, and greatly reduces the risk of CO2 liquid crystallization caused by pressure loss during unloading.

[0024] The utility model adopts a pressure maintaining tank to provide additional pure CO2 to automatically adjust the pressure of the entire unloading pipeline, and ensures the unloading safety. Compared with the original technology, the installation of the CO2 generator and the matching equipment and pipeline is saved, and the cost and the ship space are saved.

[0025] The ship unified monitoring and automatic unloading are realized, and the most extensive automatic control liquid CO2 unloading is realized. Compared with the original technology, the ship-shore unified coordinated control is realized, and the automatic control unloading system is completed on the ship. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a top view schematic diagram of the automatic unloading system of liquid carbon dioxide of the utility model.

[0027] Figure 2 It is a side view structural schematic diagram of the automatic unloading system of liquid carbon dioxide of the utility model.

[0028] Figure 3 It is an automatic control logic diagram of the automatic unloading system of liquid carbon dioxide of the utility model. DETAILED DESCRIPTION

[0029] The accompanying drawings of the embodiments are used for describing the technical solutions in the embodiments of the utility model in more detail. In the drawings, the same or similar notations represent the same or similar elements or elements with the same or similar functions throughout. The described embodiments are part of the embodiments of the utility model, not all. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model. The embodiments of the utility model are described in detail below in combination with the drawings.

[0030] It should be noted that if the application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), if the certain posture changes, the directional indications also change accordingly.

[0031] In addition, if the application embodiments involve "first", "second" and the like, the "first", "second" and the like are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one feature. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope claimed by the application.

[0032] EMBODIMENT

[0033] The embodiment provides an automatic unloading system of liquid carbon dioxide, Figure 1 And Figure 2 As shown in the figure, the utility model discloses a CO2 injection pipeline 1, a ship CO2 storage tank 2, an unloading CO2 storage tank 3, a liquid phase pipeline, the liquid phase pipeline of the utility model comprises in proper order from the ship CO2 storage tank 2 to the unloading CO2 storage tank 3 unloading pipe section 401, liquid phase pipe section 402, liquid phase hose 403 and injection pipe section 404, the first control valve 405 is arranged in the unloading pipe section 401, the second control valve 406 is arranged in the liquid phase pipe section 402, and the third control valve 407 is arranged in the injection pipe section 404. It also includes a gas phase pipeline and a gas phase branch pipe, the gas phase pipeline can include a first gas permeable pipe section 501, a gas return pipe section 502, a gas phase hose 503, a gas phase pipe section 504 and a second gas permeable pipe section 505, the first gas permeable pipe section 501 is connected with a first gas permeable pipe 506, and the second gas permeable pipe section 505 is connected with a second gas permeable pipe 507. The fourth control valve 508 is arranged on the gas return pipe section 502, and the fifth control valve 509 is arranged on the gas phase hose 503. The top of the first gas permeable pipe 506 is provided with the first safety valve 510, and the top of the second gas permeable pipe 507 is provided with the second safety valve 511. The pressure and temperature detection instrument group is connected to the ship left and right side filling station. The liquid phase hose 403 is connected with the liquid phase pipe flange of the ship filling station and the injection pipe flange of the wharf / transport ship filling station, so that the ship CO2 storage tank 2 and the unloading CO2 storage tank 3 are communicated. The gas phase hose 503 is connected with the gas phase shore flange of the ship filling station and the injection pipe flange of the wharf / transport ship filling station, so that the ship CO2 storage tank 2 and the unloading CO2 storage tank 3 are communicated in the gas phase loop.

[0034] Combining Figure 3 As shown in the figure, the first control valve 405 and the second control valve 406 are opened, the CO2 liquid in the ship CO2 storage tank 2 flows into the liquid phase pipe section 402 through the unloading pipe section 401, and the CO2 liquid fills the liquid phase pipe section 402 under the action of the pressure difference PH3=ρgH4, and the liquid CO2 flows out from the shore interface of the ship filling station. PH3 is a pressure value, unit Pa, ρ is the density of liquid CO2, unit kg / m3, g=9.8N / kg is the acceleration of gravity, and H4≧0m is the height difference between the ship CO2 storage tank 2 and the ship filling station, unit m.

[0035] The opening and closing of the first control valve 405 and the second control valve 406 controls the speed and flow of the liquid CO2 from the shore connection of the ship bunkering station. The opening of the fifth control valve 509 allows the gaseous CO2 to flow into the second gas pipe 507 through the gas phase pipe section 504 into the ship CO2 storage tank 2. The opening and closing of the fifth control valve 509 controls the flow of the gaseous CO2 from the shore connection of the ship bunkering station. The second safety valve 511 is installed at the top of the second gas pipe 507. When the pressure of the second gas pipe 507 is greater than the allowable pressure of the second safety valve 511, the second safety valve 511 automatically releases the pressure to ensure the safety of the ship CO2 storage tank 2 and the whole unloading system. The ship CO2 storage tank 2 is connected to the ship reliquefaction device 4. The ship reliquefaction device 4 can reliquefy the gaseous CO2 in the ship CO2 storage tank 2 and lower the temperature in the ship CO2 storage tank 2 to maintain the liquid CO2 for a long time. The third control valve 407, the injection pipe section 404, the unloading CO2 storage tank 3, the first gas pipe 506, the gas return pipe section 502, the fourth control valve 508, the first safety valve 510, and the pressure and temperature detection instrument form an injection system connected to the terminal / transport ship bunkering station. The opening of the third control valve 407 allows the liquid CO2 to flow into the unloading CO2 storage tank 3 through the injection pipe section 404 under the action of the pressure difference PH0 = pg(H1 + H2 + H3 + H4); PH0 is the pressure value, unit Pa; p is the density of liquid CO2, unit kg / m3; g = 9.8 N / kg is the acceleration of gravity; H1, H2, H3, H4 are the height differences between the ship CO2 storage tank 2 and the unloading CO2 storage tank 3, unit m. The opening and closing of the third control valve 407 controls the speed and flow of the liquid CO2 from the terminal / transport ship bunkering station into the unloading CO2 storage tank 3. To ensure that there is no residual CO2 liquid in the whole injection system, the terminal / transport ship bunkering station can be higher than the unloading CO2 storage tank 3 by a certain height H1 > 0 m. The opening of the fourth control valve 508 allows the gaseous CO2 in the unloading CO2 storage tank 3 to flow into the gas return pipe section 502 through the first gas pipe 506. The opening and closing of the fourth control valve 508 controls the flow of the gaseous CO2 from the terminal / transport ship bunkering station. The first safety valve 510 is installed at the top of the first gas pipe 506. When the pressure of the first gas pipe 506 is greater than the allowable pressure of the first safety valve 510, the first safety valve 510 automatically releases the pressure to ensure the safety of the unloading CO2 storage tank 3 and the whole injection system.

[0036] The pressure maintaining system, such as Figure 1 and Figure 2As shown, the gas supply system includes a pressure maintaining tank 601, a sixth control valve 602 and a connecting gas pipe 603, which is connected to the first gas permeation pipe 506. The pressure maintaining tank 601 is provided with a pressure gauge for real-time monitoring of the pressure of the pressure maintaining tank 601. When the sixth control valve 602 is opened, the gas CO2 flows into the first gas permeation pipe 506 through the connecting gas pipe 603 and then enters the whole gas return system. The opening and closing degree of the sixth control valve 602 controls the flow rate and speed of the gas CO2 flowing from the pressure maintaining tank 601 into the first gas permeation pipe 506 and the whole gas return system, thereby ensuring the safety of the ship CO2 tank 2, the unloading CO2 tank 3 and the whole gas return system. The second control valve 406 and the fifth control valve 509 are provided with a first liquid collecting disc 100 below.

[0037] The instrument signal cable 7 collects the liquid level, pressure and temperature information of the ship CO2 tank 2, and simultaneously collects the pressure and temperature information of the liquid phase pipe section 402 and the gas phase pipe section 504, thereby realizing real-time detection of the ship CO2 tank 2, the liquid phase pipe section 402 and the gas phase pipe section 504. All the collected information is transmitted to the ship central control system 9, which uniformly processes the information.

[0038] The ship-shore communication system 8 is connected with the wharf / transport ship communication system, collects the liquid level, pressure and temperature information of the unloading CO2 tank 3, and simultaneously collects the pressure and temperature information of the injection pipe section 404 and the gas return pipe section 502, thereby realizing real-time detection of the unloading CO2 tank 3, the injection pipe section 404 and the gas return pipe section 502. The information is transmitted to the ship central control system 9, which uniformly processes the information, thereby ensuring that the whole filling system realizes automatic control.

[0039] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit the present application. Although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application. Those skilled in the art can make other changes within the spirit of the present application and use them in the design of the present application, as long as they do not deviate from the technical effects of the present application. These changes made in the spirit of the present application should be included in the scope of protection of the present application.

Claims

1. An automatic unloading system for liquid carbon dioxide, characterized by, The system comprises a CO2 injection pipeline (1), a ship CO2 storage tank (2), a CO2 unloading tank (3), a liquid phase pipeline, a gas phase pipeline and a gas phase branch pipeline; One end of the CO2 injection pipeline (1) is connected to a filling station, and the other end is connected to the top of the ship CO2 storage tank (2); One end of the liquid phase pipeline is connected to the bottom of the ship CO2 storage tank (2), and the other end is connected to the top of the CO2 unloading tank (3); One end of the gas phase pipeline is connected to the top of the ship CO2 storage tank (2), and the other end is connected to the top of the CO2 unloading tank (3); The height difference between the filling station and the ship CO2 storage tank (2) is H1, and the height difference between the ship CO2 storage tank (2) and the CO2 unloading tank (3) is H2; wherein H1≥0; H2>0; Liquid CO2 is transported to the ship CO2 storage tank (2) through the CO2 injection pipeline (1), and then transported to the CO2 unloading tank (3) through the liquid phase pipeline; Gaseous CO2 in the CO2 unloading tank (3) is transported to the ship CO2 storage tank (2) through the gas phase pipeline, and gaseous CO2 in the ship CO2 storage tank (2) is transported back to the filling station through the gas phase branch pipeline.

2. The automated unloading system of claim 1, wherein, It also comprises a re-liquefaction device (4) arranged between the gas phase branch pipeline and the filling station, gaseous CO2 is transported to the re-liquefaction device (4) through the gas phase branch pipeline, and then transported to the ship CO2 storage tank (2) from the filling station.

3. The automated unloading system of claim 1, wherein, The liquid phase pipeline from the ship CO2 storage tank (2) to the CO2 unloading tank (3) is sequentially provided with a first control valve (405), a second control valve (406) and a third control valve (407); the first control valve (405) and the second control valve (406) are used to control the speed and flow of liquid CO2 flowing out of the ship's filling station; the third control valve (407) is used to control the speed and flow of liquid CO2 injected from the filling station into the CO2 unloading tank (3).

4. The automated unloading system of claim 1, wherein, The gas phase pipeline from the CO2 unloading tank (3) to the CO2 unloading tank (3) is sequentially provided with a first gas permeation branch pipeline, a fourth control valve (508), a fifth control valve (509) and a second gas permeation branch pipeline; the top of the first gas permeation branch pipeline is provided with a first safety valve (510); the top of the second gas permeation branch pipeline is provided with a second safety valve (511).

5. The automated unloading system of claim 4, wherein, It also comprises a pressure maintaining system connected to the gas phase pipeline between the first gas permeation branch pipeline and the CO2 unloading tank (3), which is used to maintain the pressure balance of the automatic unloading system.

6. The automated unloading system of claim 5, wherein, The pressure maintaining system comprises a connecting gas pipeline (603), a sixth control valve (602) and a pressure maintaining tank (601), one end of the connecting gas pipeline (603) is connected to the gas phase pipeline, and the other end is connected to the pressure maintaining tank (601), and the sixth control valve (602) is arranged on the connecting gas pipeline (603).

7. The automated unloading system of claim 1, wherein, A plurality of pressure gauges for testing pipeline pressure and thermometers for measuring temperature are arranged on the liquid phase pipeline and the gas phase pipeline.

8. The automated unloading system of claim 7, wherein, Also included is a ship-shore communication system (8) connected with the terminal or transport ship communication system, used to collect the liquid level, pressure and temperature information of the ship CO2 storage tank (2), the unloading CO2 storage tank (3), collect the thermometer and pressure gauge data, and transmit the information into the ship central control system.

9. The automated unloading system of claim 8, wherein, Also included is an instrument signal cable (7) and ship-shore communication system (8) that collects and inputs the unloading information and CO2 injection information into the ship central control system (9), which processes the information and issues instructions to the corresponding control valve to achieve automatic control.

10. The automated unloading system of any one of claims 1-9, wherein, The top of the ship CO2 storage tank (2) and the unloading CO2 storage tank (3) is respectively provided with multiple groups of spray heads, and the two ends of the liquid phase pipeline are respectively connected with the spray heads.

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